Mai Hanasaki (Anne), a teller at Tokyo Daiichi Bank, is transferred to the Research Section to investigate troubled branches. Paired with veteran Ken Souma (Takaya Kamikawa), she visits the Kayabacho branch, where a teller accidentally overpaid a customer one million yen. Based on the novels "Fushouji" and "Ginkou Soumu Tokumei" by Jun Ikeido ©Jun IKEIDO/OFFICE IKEIDO INC. ©NIPPON TV

Women at a matchmaking agency funded by the Aoyama branch file a protest, claiming no one has received a single introduction. If true, the bank aided fraud. Mai (Anne) and Souma (Takaya Kamikawa) investigate. They learn the owner has vanished with 600 million yen... Based on the novels "Fushouji" and "Ginkou Soumu Tokumei" by Jun Ikeido ©Jun IKEIDO/OFFICE IKEIDO INC. ©NIPPON TV

Mai (Anne) and Souma (Takaya Kamikawa) assist at the Kamata branch. Excited to return to teller work, Mai arrives only to meet branch manager Suga (Satoshi Jinbo), who reveals clear hostility toward Mai and Souma. Soon, Mai falls into a trap set by Suga and makes a major mistake... Based on the novels "Fushouji" and "Ginkou Soumu Tokumei" by Jun Ikeido ©Jun IKEIDO/OFFICE IKEIDO INC. ©NIPPON TV

Mitsuoka's mother, Kazuyo (Naomi Akimoto), is a monster parent who constantly complains to the bank. However, because the family holds a 500 million yen deposit, the branch cannot stand up to her. When Kazuyo blames the bank for her son's disappearance, Mai tells her off. Based on the novels "Fushouji" and "Ginkou Soumu Tokumei" by Jun Ikeido ©Jun IKEIDO/OFFICE IKEIDO INC. ©NIPPON TV

Financial Services Agency inspectors visit the Nakano branch where Mai and Souma used to work. Branch manager Makino reveals secret documents hidden in the basement. When inspectors head straight for the hideout, Mai grows furious at Aota's hostility, wondering how he knew. Based on the novels "Fushouji" and "Ginkou Soumu Tokumei" by Jun Ikeido ©Jun IKEIDO/OFFICE IKEIDO INC. ©NIPPON TV

A weekly magazine exposes sexual harassment by a branch manager at a major bank, and it's clearly Tokyo Daiichi Bank. Mai and Souma are ordered to find the whistleblower, but turn up empty-handed. Natsuko admits to Mai that it was her, then names a shocking culprit. Based on the novels "Fushouji" and "Ginkou Soumu Tokumei" by Jun Ikeido ©Jun IKEIDO/OFFICE IKEIDO INC. ©NIPPON TV

Mai is introduced by her colleague Ayana to Tomoda, owner of Tokyo Dallas. She soon hears rumors that Tomoda bribed a Tokyo Daiichi Bank employee to secure a loan. Mai and Souma (Takaya Kamikawa) are baffled, as Tokyo Dallas is financially sound and has no reason to offer bribes. Based on the novels "Fushouji" and "Ginkou Soumu Tokumei" by Jun Ikeido ©Jun IKEIDO/OFFICE IKEIDO INC. ©NIPPON TV

Mai is shocked to learn Keihin Bank has collapsed, where her matchmaker date Akimoto works. A former client, Shizue, reveals Akimoto convinced her to deposit 20 million yen there. Mai suspects Akimoto knew about the coming collapse and takes Souma to investigate him. Based on the novels "Fushouji" and "Ginkou Soumu Tokumei" by Jun Ikeido ©Jun IKEIDO/OFFICE IKEIDO INC. ©NIPPON TV

Mai goes to assist at the Shinjuku branch, where Seiichiro Itami, heir to the bank's client Itami Group, works in the loan department. Souma is ordered to Shinjuku to monitor her. Once there, Souma reunites with Koda, whom Seiichiro abruptly rejects for a loan on payment day. Based on the novels "Fushouji" and "Ginkou Soumu Tokumei" by Jun Ikeido ©Jun IKEIDO/OFFICE IKEIDO INC. ©NIPPON TV

The biggest scandal in Tokyo Daiichi Bank's history breaks out when salary data for the Itami Group disappears! Mai (Anne) and Souma (Takaya Kamikawa) join the investigation team. Shindo (Katsuhisa Namase) orders swift recovery and plots to disband the Research Section... Based on the novels "Fushouji" and "Ginkou Soumu Tokumei" by Jun Ikeido ©Jun IKEIDO/OFFICE IKEIDO INC. ©NIPPON TV